diff --git a/src/cmd/load-test-data/test-data.yml b/src/cmd/load-test-data/test-data.yml index 36e009f..40cfa6e 100644 --- a/src/cmd/load-test-data/test-data.yml +++ b/src/cmd/load-test-data/test-data.yml @@ -163,5 +163,36 @@ published_posts: body: | This page is almost empty. + - id: markdown-archive-test + title: Markdown Archive Test + description: Test loading assets from an archive (tgz) file + format: md + body: | + + This page contains images which are loaded from within an archive file which has been uploaded as a single asset. + + There should be 4 images. + + {{ Image "archive.tgz/1.jpg" }} + {{ Image "archive.tgz/2.jpg" }} + {{ Image "archive.tgz/foo/3.jpg" }} + {{ Image "archive.tgz/foo/4.jpg" }} + + - id: gemtext-archive-test + title: Gemtext Archive Test + description: Test loading assets from an archive (tgz) file + format: gmi + body: | + + This page contains images which are loaded from within an archive file which has been uploaded as a single asset. + + There should be 4 images. + + {{ Image "archive.tgz/1.jpg" "First" }} + {{ Image "archive.tgz/2.jpg" "Second" }} + {{ Image "archive.tgz/foo/3.jpg" "Third" }} + {{ Image "archive.tgz/foo/4.jpg" "Fourth" }} + assets: galaxy.jpg: ./galaxy.jpg + archive.tgz: ./archive.tgz diff --git a/src/go.mod b/src/go.mod index 36e1e48..22b8bd5 100644 --- a/src/go.mod +++ b/src/go.mod @@ -12,15 +12,14 @@ require ( github.com/hashicorp/golang-lru v0.5.4 github.com/mattn/go-sqlite3 v1.14.8 github.com/mediocregopher/mediocre-go-lib/v2 v2.0.0-beta.0.0.20220506011745-cbeee71cb1ee + github.com/omeid/go-tarfs v0.0.0-20171018021839-bf0d15c58b89 github.com/rubenv/sql-migrate v0.0.0-20210614095031-55d5740dbbcc github.com/stretchr/testify v1.7.0 - github.com/tdemin/gmnhg v0.4.2 // indirect + github.com/tdemin/gmnhg v0.4.2 github.com/tilinna/clock v1.1.0 github.com/ziutek/mymysql v1.5.4 // indirect - golang.org/dl v0.0.0-20190829154251-82a15e2f2ead // indirect golang.org/x/crypto v0.0.0-20210915214749-c084706c2272 golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9 - golang.org/x/net v0.0.0-20210917163549-3c21e5b27794 // indirect golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect gopkg.in/yaml.v3 v3.0.1 diff --git a/src/go.sum b/src/go.sum index 3c483ca..df16e62 100644 --- a/src/go.sum +++ b/src/go.sum @@ -2,6 +2,7 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT git.sr.ht/~adnano/go-gemini v0.2.3 h1:oJ+Y0/mheZ4Vg0ABjtf5dlmvq1yoONStiaQvmWWkofc= git.sr.ht/~adnano/go-gemini v0.2.3/go.mod h1:hQ75Y0i5jSFL+FQ7AzWVAYr5LQsaFC7v3ZviNyj46dY= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/BurntSushi/toml v0.4.1 h1:GaI7EiDXDRfa8VshkTj7Fym7ha+y8/XxIgD2okUIjLw= github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ= github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU= github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU= @@ -90,6 +91,7 @@ github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHh github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc= github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4= github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ= +github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM= github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg= github.com/huandu/xstrings v1.3.1/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE= github.com/huandu/xstrings v1.3.2/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE= @@ -144,10 +146,13 @@ github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh github.com/mitchellh/reflectwalk v1.0.0/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw= github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw= github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U= +github.com/niklasfasching/go-org v1.5.0 h1:V8IwoSPm/d61bceyWFxxnQLtlvNT+CjiYIhtZLdnMF0= github.com/niklasfasching/go-org v1.5.0/go.mod h1:sSb8ylwnAG+h8MGFDB3R1D5bxf8wA08REfhjShg3kjA= github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U= github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec= github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY= +github.com/omeid/go-tarfs v0.0.0-20171018021839-bf0d15c58b89 h1:UUYoIjKNJ3XbHT1Nm+0pSs6mjTKgPKcBVa0cA9tIBfQ= +github.com/omeid/go-tarfs v0.0.0-20171018021839-bf0d15c58b89/go.mod h1:OAIjrm1qIDkLYsUJQ5VahN/ZScQYM7jgJCO3zNWYmJ0= github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic= github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= @@ -210,7 +215,6 @@ go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU= go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE= go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0= go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q= -golang.org/dl v0.0.0-20190829154251-82a15e2f2ead/go.mod h1:IUMfjQLJQd4UTqG1Z90tenwKoCX93Gn3MAQJMOSBsDQ= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= @@ -294,6 +298,7 @@ gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bl gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= diff --git a/src/http/assets.go b/src/http/assets.go index 9c6c67e..5b26a2e 100644 --- a/src/http/assets.go +++ b/src/http/assets.go @@ -2,23 +2,27 @@ package http import ( "bytes" + "compress/gzip" "errors" "fmt" "image" "image/jpeg" "image/png" "io" + "io/fs" "net/http" "path/filepath" "strings" + "time" "github.com/mediocregopher/blog.mediocregopher.com/srv/http/apiutil" "github.com/mediocregopher/blog.mediocregopher.com/srv/post" + "github.com/omeid/go-tarfs" "golang.org/x/image/draw" ) -func isImgResizable(id string) bool { - switch strings.ToLower(filepath.Ext(id)) { +func isImgResizable(path string) bool { + switch strings.ToLower(filepath.Ext(path)) { case ".jpg", ".jpeg", ".png": return true default: @@ -84,21 +88,161 @@ func (a *api) managePostAssetsHandler() http.Handler { }) } +type postAssetArchiveInfo struct { + path string + id string + subPath string + isGzipped bool +} + +func extractPostAssetArchiveInfo(path string) (postAssetArchiveInfo, bool) { + + var info postAssetArchiveInfo + + info.path = strings.TrimPrefix(path, "/") + + info.id, info.subPath, _ = strings.Cut(info.path, "/") + + switch { + + case strings.HasSuffix(info.id, ".tar.gz"), + strings.HasSuffix(info.id, ".tgz"): + info.isGzipped = true + + case strings.HasSuffix(info.id, ".tar"): + // ok + + default: + // unsupported + return postAssetArchiveInfo{}, false + } + + return info, true +} + +func (a *api) writePostAsset( + rw http.ResponseWriter, + r *http.Request, + path string, + from io.ReadSeeker, +) { + + maxWidth, err := apiutil.StrToInt(r.FormValue("w"), 0) + if err != nil { + apiutil.BadRequest(rw, r, fmt.Errorf("invalid w parameter: %w", err)) + return + } + + if maxWidth == 0 { + http.ServeContent(rw, r, path, time.Time{}, from) + return + } + + if !isImgResizable(path) { + apiutil.BadRequest(rw, r, fmt.Errorf("cannot resize asset %q", path)) + return + } + + resizedBuf := new(bytes.Buffer) + + if err := resizeImage(resizedBuf, from, float64(maxWidth)); err != nil { + apiutil.InternalServerError( + rw, r, + fmt.Errorf( + "resizing image %q to size %d: %w", + path, maxWidth, err, + ), + ) + } + + http.ServeContent( + rw, r, path, time.Time{}, bytes.NewReader(resizedBuf.Bytes()), + ) +} + +func (a *api) handleGetPostAssetArchive( + rw http.ResponseWriter, + r *http.Request, + info postAssetArchiveInfo, +) { + + buf := new(bytes.Buffer) + + err := a.params.PostAssetStore.Get(info.id, buf) + + if errors.Is(err, post.ErrAssetNotFound) { + http.Error(rw, "asset not found", 404) + return + } else if err != nil { + apiutil.InternalServerError( + rw, r, + fmt.Errorf("fetching archive asset with id %q: %w", info.id, err), + ) + return + } + + var from io.Reader = buf + + if info.isGzipped { + + if from, err = gzip.NewReader(from); err != nil { + apiutil.InternalServerError( + rw, r, + fmt.Errorf("decompressing archive asset with id %q: %w", info.id, err), + ) + return + } + } + + tarFS, err := tarfs.New(from) + + if err != nil { + apiutil.InternalServerError( + rw, r, + fmt.Errorf("reading archive asset with id %q as fs: %w", info.id, err), + ) + return + } + + f, err := tarFS.Open(info.subPath) + + if errors.Is(err, fs.ErrExist) { + http.Error(rw, "Asset not found", 404) + return + + } else if err != nil { + + apiutil.InternalServerError( + rw, r, + fmt.Errorf( + "opening path %q from archive asset with id %q as fs: %w", + info.subPath, info.id, err, + ), + ) + return + } + + defer f.Close() + + a.writePostAsset(rw, r, info.path, f) +} + func (a *api) getPostAssetHandler() http.Handler { return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { - id := filepath.Base(r.URL.Path) + archiveInfo, ok := extractPostAssetArchiveInfo(r.URL.Path) - maxWidth, err := apiutil.StrToInt(r.FormValue("w"), 0) - if err != nil { - apiutil.BadRequest(rw, r, fmt.Errorf("invalid w parameter: %w", err)) + if ok { + a.handleGetPostAssetArchive(rw, r, archiveInfo) return } + id := filepath.Base(r.URL.Path) + buf := new(bytes.Buffer) - err = a.params.PostAssetStore.Get(id, buf) + err := a.params.PostAssetStore.Get(id, buf) if errors.Is(err, post.ErrAssetNotFound) { http.Error(rw, "Asset not found", 404) @@ -110,36 +254,7 @@ func (a *api) getPostAssetHandler() http.Handler { return } - if maxWidth == 0 { - - if _, err := io.Copy(rw, buf); err != nil { - apiutil.InternalServerError( - rw, r, - fmt.Errorf( - "copying asset with id %q to response writer: %w", - id, err, - ), - ) - } - - return - } - - if !isImgResizable(id) { - apiutil.BadRequest(rw, r, fmt.Errorf("cannot resize file %q", id)) - return - } - - if err := resizeImage(rw, buf, float64(maxWidth)); err != nil { - apiutil.InternalServerError( - rw, r, - fmt.Errorf( - "resizing image with id %q to size %d: %w", - id, maxWidth, err, - ), - ) - } - + a.writePostAsset(rw, r, id, bytes.NewReader(buf.Bytes())) }) }